CW25 Demo Kit User Manual
Contents
1. CW25 Demo Kit User Manual Issue ROO Bulletin NS32 DK NAVS9NC 8 Table of Contents 1 Introduction 3 2 CW25 Demo Board Overview 4 3 General Specifications 5 3 1 Operating Specifications 5 4 Interfaces 6 4 1 Power 6 4 2 CW25 U3 6 4 3 UART Connections J1 J2 J3 6 4 4 Antenna Connection J8 7 4 5 Power On and Reset Switches 7 4 6 LED Indicators 7 4 7 Timing Outputs 7 5 Operating Instructions 9 6 Connector Pin outs 10 6 1 Jumper Description amp Settings 10 6 2 RS232 DB9 Connectors 10 6 3 DC Power Connector 11 6 4 SMA Timing and Event In Connectors 11 6 5 TNC Antenna Connector 11 6 6 External Clock Connector 11 6 7 Auxiliary Connector 11 6 8 JTAG Connector 12 Appendix 1 Demo Board Schematic N AVSY C Copyright 2009 NavSync Ltd All Rights Reserved Specifications subject to change without notice 1 Introduction The CW25 Demo Kit is a complete development platform for the CW25 GPS receiver CW25 It is comprised of the CW25 Demo Board and peripherals that support its operation The CW25 is a small size OEM module specifically designed for use in weak signal GPS environments and where there is a requirement for highly accurate timing Refer to CW25 User Manual for details The Full CW25 Demo Kit includes e CW25 Demo Board e Interface DB9 Serial RS232 Cable e Power Supply Adaptor Region Specific with 2 1 mm2. e LED Indicators for GPS status Power status and a 1PPS blinking LED e Current measuring headers at the CW25 power supply inputs e Reset and Power switches C VJ Toes MEET p _ Timing Outputs BH e e DC Input JE JE Figure 1 CW25 Demo Board Copyright 2009 NavSync Ltd All Rights Reserved Specifications subject to change without notice N AVSY C 3 General Specifications If not otherwise specified all performance data refers to the CW25 3 1 Operating Specifications Parameter Min Typical Max Units Operating Temperature 30 65 C Power Supply Voltage VDC 4 5 5 25 VCC Power Consumption 0 62 W UART Interfaces x3 J1 J2 J3 D SUB 9 WAY RS232 Active Antenna Connector TNC Socket Female Power Connector DC 2 1mm Barrel Center Positive Cliff DC 10 125 x 120 x 30mm approx Board Only Dimensions 128g approx Board Only Weight Powel Reg Current 3 3VDC Measure Vin J4 i BT1 X PWR Enable S1 CUT RF J8 CW25 GPS RECEIVER Auxiliary Header J2 NMEA 31 L RS232 ii Level Shift c DEBUG J2 NET J3 ASSIST Reset SW1 LED Indicators AS AZ AZ AY GPS GPS 1PPS PWR Red GRN 1PPS FREO EVENT IN J6 J7 Figure 2 CW25 Block Diagram NAVSYNC Copyright 2009 NavSync Ltd All Rights Reserved Specifications subject to change without notice 4 Interfaces 4 1 Power
3. SW PUSHBUTTON z Pi JUMPER voc ava TN o e CE cis i 10 CAP au 0818 JPR JUMPER REE 33A 0603 5 W EMA CON Eta dA BAT BB1 15vDC INEUT ue OLN ADU qo inpol n5 i BISLAW 7 FeO A WE me 3K3 0603 18 HEADER H N FITO COMPONENTS FOR EXTERMAL CLE 4 CC DONT zl oim JPY JUMPER FF ava VBATT Dia ava ANT PREAMP LE RF OLIT THO TX1 Taz USEF LISAM FPEO OLT 1PF amp EVENT IH DIG Va DIG 3V3 ANT SUPPLY JTAGEELATOK FE N GPEXVPWM OUT IM GPIH TIME SYNC GPIONEX T INT T CLK i GRIS FRESIA LED RED Pl LED GAH pon ceca DEA OOFZU OUT CTRL GHD DA 12 Fes J GAD MF MEX SMA CON HF 0603 Aos Fn RES 150A 0803 Mal Favan N DI 4148 COLIT FF di B RES 33H 0503 5 B REQUT 27 USER LIEB H RES G3R 0509 7 AFO q 2 Pi E Tra Y 1 voc ava Fi Tat Loop E 7 C27 CAP 4u7 0609 TE vee aa TPS RES OF DEDE a 7 L A E EM Pay n PIRI 1 FEEL TPZ bsat lop AXO IX GPS AEG r1 FR tz an GPS Fx 3 J LE PE HX i a LJ DES FEMALE 0066 41 E O E T 1 FUIKT 2 DEBDS LJ D o pHs FEMALE SIDES E JZ FE RES 0A 0805 TOGGLE IFF LED CIRCUIT CE 11144 F Out 06809 OF 44 07 4_ 0 FLIPFLOP ACE Fiz RE 150A 0803 Da Bay 143 Shannon Indu strial Estate Shannon Ga Clara Iraland 4353 61 472221 TEk353 61 472226 FAX W
4. IN or P1 for the standard 3 3VDC on board supply If the P2 position is used the board supply input voltage must remain below 15VDC Care must be taken to insure that no more than 50mA is drawn from the Antenna connection otherwise damage may be caused to the CW25 unit 4 5 Power On and Reset Switches The Power On Slide Switch S1 enables the 3 3VDC Regulator When power is connected to the board and 1 is in the ON position the yellow LED D1 will be fully ignited The Reset Push switch SW1 is connected to the NPOR signal of the CW25 unit This can be pushed to reset the CW25 4 6 LED Indicators Power ON LED D1 This yellow LED is fully on when 3 3VDC is applied to the Board 1PPS LED D2 This 1PPS LED toggles ON OFF when the 1PPS signal is present GPS Status Red D3 On the standard CW25 TIM and NAV software builds the GPS Red works as follows Long red flash for invalid GPS fix Short red flashes for satellites tracked but not used in solution GPS Status Green D4 On the standard CW25 TIM and NAV software builds the GPS Green works as follows Long green flash for a valid 2D 3D fix Short green flashes for number of satellites used in solution Copyright 2009 NavSync Ltd All Rights Reserved Specifications subject to change without notice 4 Indicators continued 4 7 Timing Outputs 1PPS Output SMA J5 female standard socket The 1PPS signal from the CW25 is available here It is directly con
5. The CW25 Demo Board can be operated from two sources of DC power a standard DC Power adaptor with a 2 1mm DC Plug connected to J4 or the alternative connection point BT1 a battery pack or DC cables which can be soldered directly to the terminals 4 2 CW25 U3 The CW25 TIM or CW25 NAV is mounted on the board depending on the Demo version ordered Please see the CW25 TIM and CW25 NAV datasheets along with the CW25 User Manual for detailed information 4 3 UART Connections J1 J2 J3 The CW25 Demo provides RS232 level shifting TX RX GND to interface the CW25 GPS receiver with a PC via either a standard serial port or a USB serial adapter example Roline USB Type A serial DB9ST For detailed information of data streams and command format refer to User Manual UART 1 J1 Main UART of the CW25 for NMEA message and Command Configurations UART 2 J2 Debug Messages UART 3 J3 Net Assist 4 4 Antenna Connection J8 The antenna is connected using the female socket TNC connector J8 on the CW25 Demo Unit A patch antenna is supplied with the kit If the necessary antenna has a different connector a suitable adaptor is required The Demo Board provides 3 3VDC at the antenna jack to power active antennas Higher voltage antenna can be accommodated up to 15VDC by routing the input power Vin to power the antenna Jumper header JP4 determines the source power for the antenna The jumper is placed in the P2 position for direct DC
6. plug e Magnetic Patch Antenna with a 3m lead e CD which provides Navsync Manuals datasheets and GPS Parser Software NS3K View The CW25 Demo Board can be purchased individually with a pick and choose option for accessories This may reduce cost if the customer already possesses such accessories 2 CW25 Demo Board Overview The main purpose of the CW25 Demo Board is to provide a power supply battery backup RS232 interface and easy access to the CW25 functionality A TNC connector is available for an active antenna and SMA connectors are on board for easy connection to the timing 1PPS and frequency outputs Access to the Event In pin is also available through an SMA connection The antenna power is provided by on board circuitry A connection point BT1 is available as an alternate to the 2 1 Barrel Socket for a DC power supply If field tests need to be carried out a 4AA battery pack can also be attached to the BT1 connection port The CW25 Demo Board is a stand alone GPS board providing simple interfaces to host systems such as a PC The Demo Board provides e On board CW25 NAV Navigation or CW25 TIM Timing e 3 3VDC Power Regulation which allowing input voltage of 4 5VDC to 25VDC e RS232 Interface to each of the 3 UARTs of the CW25 NMEA Debug Net Assist e RF IN Female TNC connector e SMA CO AX connector for the 1PPS and Frequency outputs CW25 TIM only e Battery Backup Circuit for the CW25 s RTC when power is not applied
7. Ltd All Rights Reserved Specifications subject to change without notice 6 Connector Pin outs 6 1 Jumper Description amp Settings JUMPER DESCRITPION Normal Position JP 1 DIG Power to CW25 3 3VDC ON JP2 RF Power to CW25 3 3VDC ON JP3 DIG Power to CW25 1 8VDC ON JP4 Antenna Supply P1 3 3VDCP2 Powered directly from J4 BT1 P1 JP5 Buffered 1PPS to J1 J2 J3 Pin1 SelectionP1 1PPS NON INV P2 1PPS INV P1 JP6 Bootsel Only to be placed when programming OFF JP7 Freq out to Event in Only placed for special SW builds OFF JP8 VBAT POWER TO CW25 ON 6 2 RS232 DB9 Connectors J1 NMEA and Command J2 Debug J3 Net Assist Pins Description Pins Description Pins Description 1 1PPS 1PPS Buffered 1 1PPS 1PPS Buffered 1 1PPS 1PPS Buffered 2 TXO RS232 Levels 2 TX1 RS232 Levels 2 X2 RS232 Levels 3 RXORS232 Levels 3 RX1 RS232 Levels 3 RX2 RS232 Levels 5 GND 5 GND 5 GND 6 3 DC Power Connector The DC power connector is a 2 1mm Barrel center positive socket connector Cliff Component DC 10A J4 DC IN Pins Description CENTER DC Power in 4 5 25v OUTER DC Power in GND 6 4 SMA Timing and Event In Connectors J5 1PPS Connected directly to Pin 38 of the CW25 via a 33ohm resistor J6 Frequency Out Connected directly to Pin 39 of the CW25 via a 33ohm resistor J7 Event In Connected directly to Pin 37 of the CW25 via a 33ohm resis
8. W Ww CODIN com Cwes DEMO En gin aer D GEOGHEGANH Document Number IPBOCuEZ NAVSYNC NS32 DK CW25 Demo Kit User Manual Page 9 of 10 ROO Date 02 16 09 Copyright 2009 NavSync Ltd opecifications subject to change without notice All Rights Reserved CW25 Demo Kit User Manual Issue ROO Revision Revision Date Notes POO 02 03 09 Release ROO 02 16 09 Public Release NavSync Ltd Europe Bay 143 Shannon Industrial Estate Shannon Co Clare Ireland Phone 353 61 475 666 E mail sales navsync com North America 2111 Comprehensive Drive Aurora IL 60505 USA Phone 630 236 3026 E mail northamerica navsync com WWW navsync com
9. nected to Pin 38 through a 33 ohm resistor A buffered 1PPS is also available on Pin 1 of each of the DB9 connectors This signal can be inverted by selecting the P2 position of jumper header JP5 Otherwise the Jumper is placed on P1 for the standard non inverting buffered 1PPS Please note that these buffered 1PPS signals are CMOS levels not RS232 levels Frequency Output SMA J6 female standard socket The default frequency from the CW25 is 10Mhz The SMA conductor is directly connected to Pin 39 through a 33 ohm resistor Output is only available on the CW25 TIM version Event In Input SMA J7 female standard socket Connected to the Event In Pin 39 of the CW25 This is connected through a 33 ohm resistor 5 Operating Instructions 1 Connect the Antenna to the TNC socket J8 2 Place the Patch antenna in a sky view location 3 Connect a RS232 data cable also an available accessory to the NMEA Port J3 4 Connect the remaining end of the cable to the RS232 COM port on a PC 5 Open Terminal Window or NavSync NS3K View GPS parser on the PC with communications setting set to match the COM port used and the baud rate set to 38400 default 6 Connect the Power supply to the Board 7 Place the Slide Switch S1 to position 1 to switch Power ON 8 The unit should start to stream data 9 Once the unit achieves a GPS lock timing outputs CW25 TIM only will be valid and present E Copyright 2009 NavSync
10. tor 6 5 TNC Antenna Connector This TNC is a standard TNC socket J8 RF IN A GPS TNC active antenna can be connected here Power is supplied to the antenna from the Demo Board see JP4 description Copyright 2009 NavSync Ltd All Rights Reserved Specifications subject to change without notice 6 Connector Pin outs continued 6 6 External Clock Connector J9 Not fitted on demo board only used for special hardware builds of the CW25 6 7 Auxiliary Connector The pins on this non fitted connector are directly connected to the CW25 J10 Auxiliary Connections Pins Description Pins Description 1 GPIO1 PIN 40 9 TX1 PIN 5 2 GND 10 RX1 PIN 6 3 GPIO2 PIN 41 11 TX2 PIN 3 4 GND 12 RX2 PIN 4 5 GPIOS PIN 42 13 N2WDA PIN 29 6 GND 14 N2WCK PIN 28 7 TXO PIN 1 15 USBP PIN 30 8 RXO PIN 2 16 USBN PIN 31 6 8 JTAG Connector The pins on this non fitted connector are directly connected to the CW25 J11 JTAG Connections Pins Description Pins Description 1 VCC 3 3VDC 11 JSEL PIN 21 2 VCC 3 3VDC 12 GND 3 NTRST PIN 15 13 TDO PIN 13 4 GND 14 GND 5 TDI PIN 14 15 NRESET PIN 10 6 GND 16 GND 7 TMS PIN 22 17 NC 8 GND 18 GND 9 TCK TDI 19 NC 10 GND 20 GND E Copyright 2009 NavSync Ltd All Rights Reserved Specifications subject to change without notice Appendix 1 Demo Board Schematic dH D IM DG 10A lo NP R
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